How do you know if you'll become sea sick?

[Scubadoobie2]

Coffee enemas?! You're kidding! Do ya think Starbucks enemas might be more effective than the ordinary mountain grown stuff? Would the ship's store folks give you a funny look if you ask for cream and sugar with it? I hope it comes with a Caution on the lable, like, "wait for coffee to cool to room temperature." (sorry, couldn't resist responding to this one)

[mn311601]

I would think a good portion of this is in your head. Not that people don't get seasick, but I would think the more you worry about it, the more you are likely to make yourself become sick.